Don't You Hate People Who Talk in Movies?

Well, you wouldn’t want to have sat next to Katie Holmes when she went to a recent screening of New Moon.

Suri’s mama Katie had a total girls’ night out on Saturday in NYC, but instead of going to a night club with her gal pals, she chatted through a screening of New Moon…and fans of the flick were NOT pleased.

“They talked nonstop,” an observer tells Fox411. “Some people wanted to tell them to be quiet but when they realized who it was, they stayed silent. No one wanted to shush Katie.”

The New Moon fans — who just wanted to watch Edward Cullen and co. in peace — did the right thing, Daniel Post Senning, the community moderator at EtiquetteDaily.com, tells us.

“Correcting other people’s behavior is very tricky,” he says. “It’s like a broccoli-in-your-teeth kind of analogy. You want to let them know about it but you can also worsen the situation by escalating it.”

So what should you do if you find yourself stuck with a chatter bug? Here are Senning’s tips for proper movie manners:

1. “Everyone should be considerate of the people around them.” This includes keeping talking to a minimum and turning off your cell phone.

2. If you absolutely must say something, “keep it in a hushed tone. Minimize, minimize, minimize.”

3. Don’t be afraid to let authority know about the talkers. “Find a manager. It’s their place to take care of situations like this.”

4. Remember that “people are there for the movie – not your commentary!”

We know you didn’t mean to ruin the movie, Katie. At least you know the rules for next time!